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    • 1. 发明授权
    • Hot melt construction adhesives for disposable articles
    • 一次性物品的热熔粘结剂
    • US06184285B2
    • 2001-02-06
    • US09185965
    • 1998-11-05
    • Stephen F. HatfieldAlejandro MatassaRobert Goodman
    • Stephen F. HatfieldAlejandro MatassaRobert Goodman
    • C08L5302
    • C09J153/02C08L2666/02C08L2666/04C08L2666/24
    • Novel hot melt construction adhesives for disposable articles, such as diapers, sanitary napkins, medical gowns, surgical drapes, and the like, are described which offer superior properties versus currently available hot melt adhesives. These hot melt construction adhesive compositions comprise a blend of styrene-isoprene block copolymer containing at least about 25 weight percent styrene and styrene-butadiene block copolymer containing at least about 25 weight percent styrene, at least one compatible tackifying resin and at least one plasticizer. The hot melt construction adhesive possesses a viscosity no greater than about 25,000 mPa·s at about 140° C., a shear adhesion failure temperature of at least about 60° C., and a static shear time to failure of no less than about 25 hours at about 23°.
    • 描述了与目前可获得的热熔粘合剂相比具有优异性能的用于一次性制品的新型热熔结构粘合剂,例如尿布,卫生巾,医用长袍,外科用手术织带等。 这些热熔结构粘合剂组合物包含含有至少约25重量%苯乙烯的苯乙烯 - 异戊二烯嵌段共聚物和含有至少约25重量%苯乙烯,至少一种相容的增粘树脂和至少一种增塑剂的苯乙烯 - 丁二烯嵌段共聚物的共混物。 热熔结构粘合剂在约140℃下的粘度不大于约25,000mPa.s,剪切粘附破坏温度为至少约60℃,静态剪切时间为不低于约25℃ 小时在23度左右。